• Gray metal arista dcs-7280cr3am-48d6-flx-r network switch with 48 100g ports and ventilation slots visible on the front side
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Arista

Arista DCS-7280CR3AM-48D6-FLX-R | 7280R3A 48-Port 100G Switch, 6x 400G, 14.4Tbps

DCS-7280CR3AM-48D6-FLX-R

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Description

The Arista DCS-7280CR3AM-48D6-FLX-R is a purpose-built data center switch router delivering 48 ports of 100GbE QSFP and 6 ports of 400GbE QSFP-DD with 14.4 Tbps total throughput and 2.7 billion packets per second. This 1RU platform features line-rate TunnelSec encryption supporting MACsec, IPsec, and VXLANsec for secure connectivity, plus FLX licensing enabling up to 2 million routes for internet peering and service provider environments. With 8GB deep packet buffers, precision timing support, and rear-to-front airflow, it excels in high-performance spine, leaf, and DCI deployments.

Features

48x 100GbE QSFP and 6x 400GbE QSFP-DD for flexible high-density connectivity
- 14.4 Tbps non-blocking switching fabric with 2.7 Bpps forwarding rate
- Line-rate TunnelSec encryption: MACsec, IPsec, and VXLANsec at full wire speed
- 8GB deep packet buffers for burst absorption and lossless forwarding
- FlexRoute engine with FLX license supporting up to 2 million IPv4 routes
- EVPN-VXLAN overlay networking with MPLS and Segment Routing support
- Accelerated sFlow for full wire-speed telemetry at 1:500 sampling rates
- Inband Network Telemetry (INT) for per-flow monitoring and congestion visibility
- Algorithmic ACLs for scalable access control and policy-based forwarding
- Precision timing with PTP IEEE 1588v2, SyncE, and OCXO for accurate synchronization
- Virtual Output Queuing architecture eliminates head-of-line blocking
- Advanced QoS with 8 egress queues and flexible scheduling policies
- MLAG for layer 2 active-active redundancy and ECMP for layer 3 load balancing
- CloudVision integration for automation, telemetry, and zero-touch provisioning
- Hot-swappable dual redundant 1900W AC power supplies and fan trays
- Arista EOS: state-sharing modular architecture on Linux with stateful switchover

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

Port Configuration: 48x 100GbE QSFP ports, 6x 400GbE QSFP-DD ports
- Throughput: 14.4 Tbps full-duplex switching capacity
- Forwarding Rate: 2.7 billion packets per second
- Packet Buffer: 8GB deep packet buffer memory
- System Memory: 64GB RAM with eight-core x86 CPU
- Routing Scale: Up to 2 million IPv4 routes with FlexRoute and FLX license
- Encryption: Line-rate AES-256-GCM MACsec, IPsec, and VXLANsec on all ports
- Latency: From 3.8 microseconds
- Management: Arista EOS with CLI, web GUI, REST API, SNMP, CloudVision
- Airflow: Rear-to-front cooling (port-side intake)
- Power Supply: Dual 1900W AC power supplies
- Form Factor: 1RU rackmount, 48.3 x 4.4 x 59.2 cm
- Weight: Approximately 14.8 kg
- Timing: PTP, SyncE with OCXO, PPS, 10MHz, and ToD support

FAQs

Q: What encryption capabilities does this switch provide?
A: The DCS-7280CR3AM-48D6-FLX-R includes TunnelSec encryption enabling line-rate AES-256-GCM encryption across all ports. It supports standards-based MACsec for layer 2, IPsec for layer 3 router-to-router tunnels, and VXLANsec for encrypted overlay networks, making it ideal for secure data center interconnect and WAN encryption.

Q: What does the FLX license provide?
A: The included FLX license unlocks advanced routing features including support for up to 2 million IPv4 routes, over 24,000 ACL entries, full EVPN and VXLAN capabilities, Segment Routing, and advanced MPLS LER/LSR functionality. This makes the switch suitable for internet peering, large-scale data centers, and service provider environments.

Q: Can this switch support mixed port speeds?
A: Yes, the QSFP ports support flexible breakout configurations. The 48x QSFP100 ports can operate at 100G, 40G, or break out to 4x25G or 4x10G. The 6x QSFP-DD ports support 400G, 200G, 100G, or breakout modes, allowing up to 114 total 10/25G ports or 68 total 100G ports depending on configuration.

Q: What network architectures is this switch designed for?
A: The DCS-7280CR3AM-48D6-FLX-R is designed for high-density spine and leaf architectures, internet exchange points, content delivery networks, data center interconnects, and AI/ML fabrics. Its deep buffers and low latency make it ideal for lossless networks handling storage, video streaming, and high-frequency trading applications.

Q: What is the significance of rear-to-front airflow?
A: The rear-to-front (-R suffix) airflow pattern means air flows from the fan tray side to the port side. This cooling direction is designed to match specific data center hot/cold aisle configurations. Ensure your rack layout accommodates this airflow pattern for optimal cooling efficiency and compatibility with existing infrastructure.

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